Astrophyllite Crystals in Matrix - Russia Chemical Formula: SiO₂

Chemical Formula: SiO₂

Weight: ~18 oz

It is also said to help increase memory and learning abilities

All three quartz points contain various hues of gray/brown

While the other side still showcases some dark spots of the matrix

Astrophyllite Crystals in Matrix - Russia Chemical Formula: SiO₂Size: 2. 35 x 1. 38 x 0. 41 in. Weight: 0. 80 oz Location: Russia Chemical Formula: (K,Na)3(Fe++,Mn)7Ti2Si8O24(O,OH)7 Astrophyllite is a very rare, brown to golden yellow hydrous potassium iron titanium silicate mineral. The mineral usually forms as bladed, radiating stellate aggregates. Astrophyllite gets its name from the Greek words, astron meaning "star" and phyllon meaning "leaf". The mineral can be found in a few scarce, remote localities, such